Explaining too much about Type-C, with the introduction of USB4, it is already the king without suspense. The standard USB interface (that is, Type-A) interface, except for some larger devices, is becoming more and more rare on other small devices. In this issue, we want to focus on the Type-A interface alone. It is too common, but there are too many uncommon places, leading a new change in the field of connection.
The video is an introduction to the principle of self-locking USB. For harsh industrial environments, the upgrade of USB brings us more convenience. We can learn a wealth of information in 1.5 minutes, and the full-screen playback effect is better.
There are many versions of USB, and there are various types of interfaces. Even the Type-A interface we are introducing now has a big difference between USB 2.0 and 3.0 (or above).
As can be seen from the figure, the Type-A of USB 2.0 is four pins, and the Type-A of USB 3.0 is nine pins, and the positions of 4 pins are the same as those of USB 2.0, which is also the reason for being compatible with USB 2.0.
At the beginning of the introduction of the Type A interface, the association did not take into account the high-speed data transmission requirements in the future, until after the launch of USB 3.0, it was found that its design could not meet the transmission requirements, so the USB IF Association updated the Type A interface, adding 4 lines. SSTX/SSRX, for high-speed data transmission, and a GND is added to improve shielding performance.
Although the interfaces are the same, in order to distinguish them thoroughly, the association has also made a difference in the logo on the USB. When you look at the interface, you can clearly identify the USB type according to the logo on the side of the interface.
The long-term use of a product may not be because of its own greatest advantages, but a comprehensive consideration. The convergence of various elements becomes a bright spot, and the Type-A interface is like this. As an old interface that has existed for many years, it has played a new trick in all walks of life. Compared with Type-C, it adapts to more settings, especially in the field of smart industry, and plays an important role.
Of course, these Type-Cs can also be done, but compared to the flexibility of Type A, Type-C is still struggling for some of the less common USB interfaces, especially the small interfaces such as Mini-USB and Micro-USB. .
Due to the early development of the USB A-type interface, it has developed very targeted solutions to deal with different connection environments. It can be said that different usage methods have been fully considered. Can do it perfectly.
In addition to USB cables, Type-A interfaces appear in many components, and the adaptability is greatly improved. Whether it is in converters or couplers, there are many patterns and various installation methods, and try to perfect every connection link.
We can see that although USB Type-A loses to Type-C in some key conditions, it still has advantages in various aspects. In general, it can still be quite useful in the environment of USB.